Type the correct answer in the box. round off your answer to the nearest integer. two right triangles d a b and b c d form a parallelogram. right angles are at a and c. side d a equals 6, side a b equals 5, and side d c equals 4. an acute angle p is at b d c. triangle d a b is shaded. ∠a and ∠c are right angles. m∠p = degrees.